Take your calendar everywhere you go. If you have an existing calendar account (or several), import them all into the Calendar app. If you don't have an account, no problem. Just enter your events in the offline calendar.

To open the calendar app, tap on the Calendar icon, you probably need to swipe one or more screens to the right:

Import your calendars

To import a calendar, tap the menu icon (top left).

Tap the plus sign on the next panel.

A sliding panel will appear which will allow you to choose your calendar provider. Tap the type of calendar that you want to add, then follow the prompts to log in.

Known issue - Yahoo! Calendar: Yahoo! Calendar is not currently supported in Firefox OS versions 1.0 to 1.4. While configuration appears to work, you will not be able to import or add events from Yahoo! Calendar. We expect to see this resolved in version 1.5. For more information see bug 974554.